my bmws is ressisting to pull away from a red light quick

[scotttollan]

Hi my bmw 320i m20 is ressisting to pull away from a red light quick.
It also hessitates to rev up for a couple of minutes when reved when stopped. I think it has a flat spot if so can you tell me how to get rid of the flat spot and what is it thats causng this to happen could it be because it could it has been waterlocked before and this is the water coming out now?.

thanks.

[Jon_Bmw]

I think you are underestimating BMW's, it being really clever and waiting for the green light.

[mash320i]

I think you are underestimating BMW's, it being really clever and waiting for the green light.

[scotttollan]

no i'm not i like bmws and plus i do wait for the green light it just ressites to pull away like from a stop when you put the accelerator pedal down to the floor.

please tell me what is causing this to happen because i would like to get it fixed


honest i do like all the bmws

[leeparkes]

not sure what you mean,
does it like splutter when you pull off and once your off does it drive ok?
ie hesitating,etc...

[Brianmoooore]

It's trying to tell you it needs a good service!

[scotttollan]

It's trying to tell you it needs a good service!

i have serviced it byputting new spark plugs new oil reset the lights

[lloydp]

Sounds like it might need more servicing than that...

Is it an automatic? I've never seen an auto (BMW or other) that didn't hesitate a moment before moving off...even the best have a tiny delay between "foot to the floor" and "off we go"

[scotttollan]

Sounds like it might need more servicing than that...

Is it an automatic? I've never seen an auto (BMW or other) that didn't hesitate a moment before moving off...even the best have a tiny delay between "foot to the floor" and "off we go"

no it's a manual transmission

[zimmer-320i]

i have serviced it byputting new spark plugs new oil reset the lights

can i say oil and spark plugs arnt a service, needs air filter and oil filter and never use the old oil filter with new oil also full serve includes the ht leads dizzy and rotor

[Onz]

any strange noises? knocking or grinding? also do your cams whine?

[scotttollan]

i have serviced it byputting new spark plugs new oil reset the lights

can i say oil and spark plugs arnt a service, needs air filter and oil filter and never use the old oil filter with new oil also full serve includes the ht leads dizzy and rotor

i also done the oil filter

and then replaced the air filter with an induction kit

i done the dizzy and the rotor arm at the same time

[scotttollan]

any strange noises? knocking or grinding? also do your cams whine?

nope

[sag]

HELLO MATE
HAS IT HAPPENED AFTER UR SO CALLED SERVICE OR BEFORE

[scotttollan]

yes it has i'm only looking for answers not any people saying i haven't serviced it

[danman2k]

you could try unplugging the battery and forcing the ecu to relearn settings maybe. check pipes for splits. change fuel filter. give the car a good sprint on the motorway and see.

getting a chip is suppose to remove flat spots too

[Flozman]

I think you may either have a blocked vacuum hose, mulfuncting afm or the timing is out.

Start with the easy things first, check nothing was disturbed during you "service".

[leeparkes]

i had an induction kit on my 325i and was advised to go back to the standard air box!
on doing this i noticed an improvment throughout (especially on standing starts) e30s suffer from heat under the bonnet
so when your sitting at the lights heat builds up and when you first pull off the induction kit is sucking hot air,hence loss of power!
get a paper element from euro parts for a fiver go back to the air box (you will be suprised)

worth a try!

[zimmer-320i]

yes it has i'm only looking for answers not any people saying i haven't serviced it

were only trying work out why mate, my inspection light was on but made no diffrence,

if you cant source it get a mobile dignostics (sorry spelling ) man charges 45£ first hour and some thing like that may take minutes to find, also check maf sensor, i saw a vid on youtube with a guy talking about plus video that the engine hesitates on throttle but so does mind if i tap it it struggles then picks up plus mine hesites slightly then picks up at 3k revs,
my main advice would be check all electric plugs and earthin point ang go from there

[zimmer-320i]

e30s suffer from heat under the bonnet
so when your sitting at the lights heat builds up and when you first pull off the induction kit is sucking hot air,hence loss of power!

yer ive got a apexi filter as it goes

[danman2k]

im with leeparks on this one

[snoops]

check the AFM to throttle body hose, if this is split it can cause hesitation

[Brianmoooore]

These are typical symptoms of a neglected E30, and as I said at the start of the thread, it needs a damn'd good service!!
I'm not talking about just changing the oil and sparkplugs - I mean carefully check out the whole ignition system, check the valve clearances, check the valve gear for wear, check the AFM, check and clean the ICV, clean the throttle body, check the action of the TPS, check the plug and socket for the injector loom, check the blue temp sensor is within spec, check all hoses and gaskets for air leaks, etc, etc.
Or, in short, check that everything works and is adjusted exactly as it was when it left the factory!

[danman2k]

im with bmoore on this one

[Bob_S]

does it tap like buggery?

[scotttollan]

does it tap like buggery?

nope perfect

[Alex]

hang on!!! its a m20b20 theres the trouble

[scotttollan]

hang on!!! its a m20b20 theres the trouble

wait a minute how did u guess that was correct

it doesn't do it all the time

[Alex]

hang on!!! its a m20b20 theres the trouble

wait a minute how did u guess that was correct

it doesn't do it all the time

only kidding

[scotttollan]

oh you had me going there

[jbh]

i would do as mr moore says i would also try running it for a day with the standard airbox just to see if this makes a diffrence as i know it has in the past for me

[scotttollan]

it was doing that with the starnderd aswell before i switched it to the induction kit

[sag]

deos it idle properly

[scotttollan]

yes it idles properly

i cleaned the vacum hose on thursday and it stopped for now hopefully it's away this time